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freshly baked zucchini lasagna

Low-Calorie Zucchini Lasagna

This low-calorie zucchini lasagna is a lighter twist on a classic favorite. Layers of tender zucchini, creamy ricotta, melted mozzarella, and rich tomato sauce come together in a hearty, flavorful casserole that’s perfect for weeknight dinners or a healthy comfort meal.
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Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings: 6 people
Course: Main Course
Cuisine: Italian-Inspired
Calories: 210
Ingredients Method Notes

Ingredients
  

Zucchini Layers:
  • 4 medium zucchini thinly sliced lengthwise
  • 1 tsp salt
Cheese Filling:
  • 1 cup ricotta cheese
  • 1 cup shredded mozzarella cheese
  • 1/2 cup grated Parmesan cheese
  • 1 large egg
  • 1 tsp dried Italian herbs
  • Pinch of black pepper
Tomato Sauce:
  • 2 cups marinara or tomato sauce store-bought or homemade
  • 2 cloves garlic minced
  • 1 tbsp olive oil
  • 1 tsp dried oregano or basil

Method
 

  1. Prepare the Zucchini: Slice zucchini lengthwise into thin strips (~1/8 inch). Sprinkle with salt and let sit for 10–15 minutes. Pat dry with a paper towel to remove excess moisture.
  2. Make the Sauce: Heat olive oil in a pan over medium heat. Add garlic and sauté 1–2 minutes. Pour in tomato sauce and oregano, simmer 5–10 minutes until slightly thickened. Season to taste.
  3. Mix the Cheese Filling: In a bowl, combine ricotta, half the mozzarella, Parmesan, egg, black pepper, and Italian herbs. Stir until smooth.
  4. Assemble the Lasagna: Preheat oven to 375°F (190°C). Spread a thin layer of sauce on the bottom of a baking dish. Layer zucchini slices to cover. Add a layer of cheese filling, then sauce. Repeat layers, finishing with sauce and remaining mozzarella on top.
  5. Bake: Cover with foil and bake 25 minutes. Remove foil and bake 15–20 minutes more until the cheese is golden and bubbly. Let rest 10 minutes before serving.

Notes

  • Make sure to dry the zucchini slices well to avoid a watery lasagna.
  • Can be made ahead and baked later — assemble, refrigerate, and bake when needed.
  • Optional additions: spinach, mushrooms, or eggplant for extra veggies.
  • Freezes well if you assemble before baking.